For me, Post-it notes are an important part of the preparation phase of a presentation. They're great for brainstorming and can serve as early versions of slides. Right now, I am working on a presentation that I'm about to give soon and all I have at this point is a collection of Post-it notes stuck to my whiteboard. But that's all I need to practise this talk!
Once I'm happy with the content and comfortable with the flow, I'm going to sit down at my computer and create the slides. There will probably be fewer slides than the number of Post-its I have right now; some Post-its are early versions of slides, others are simply notes.
But do you always have to use Post-its? Are there any alternative products you could use? I've mentioned software solutions before - mind mapping tools and the free Post-it app. But this is about "analogue" alternatives: Tangible things you can write on with a pen. What alternatives are there?